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Author Topic:   1996 Johnson 115
bmcgee posted 08-28-2004 08:39 AM ET (US)   Profile for bmcgee   Send Email to bmcgee  
Is a 1996 Johnson 115-HP outboard a good motor if it was made prior to the bankruptcy filing by OMC? Is it a 60- or 90-degree block? Is the induction method cross flow?
jimh posted 08-28-2004 03:37 PM ET (US)     Profile for jimh  Send Email to jimh     
[Administrative post]
Freeport Alan posted 08-28-2004 03:57 PM ET (US)     Profile for Freeport Alan    
I wouldnt worry about pre or post OMC bankruptcy with this motor , these engines were one of the better motors in all of outboard history IMHO.
I owned a 1999 90 { same block } & put 600 hard hour on it before selling it in great shape.
Do a compression check, check cond. of lower unit oil,
they were good motors..
Alan
Freeport Alan posted 08-28-2004 04:00 PM ET (US)     Profile for Freeport Alan    
As to your other Q.'s, Looped, 60 degs.
I'm curious, would you prefer looped of cross scavanged ?
bmcgee posted 08-28-2004 06:36 PM ET (US)     Profile for bmcgee  Send Email to bmcgee     
is it 60 or 90 degree. looped or crossflow.
bmcgee posted 08-28-2004 07:11 PM ET (US)     Profile for bmcgee  Send Email to bmcgee     
i don't know the difference, was told all new motors are looped so i guess they are the better method for 2 strokes.
thanks for your reply
Freeport Alan posted 08-28-2004 07:46 PM ET (US)     Profile for Freeport Alan    
Off the top of my 42 yr. old tired head Cap ..
Looped have flat pistons & " may " get better milage..
Cross scavenged or cross flow have domed pistions & those spark plugs that are flat.. These engines handle lower speeds like trolling much better.. Cross scavanged motors are still made by the big manufacturers today & are small trolling, high output motors around 15 horse or so. Loop charged motors have flat pistons & spark plugs like we see in cars with electrodes.. Sailboat Outboards, Trolling long shaft Cross scavanged { not Looped }
There was a time that all motors were cross scavanged..
I believe early '70's they started loop charging some..
If I remember right the SPL Johnson line were cross Scavanged { not looped } & they are sought after motors with a great rep { I had one }..
So in a nutshell, bigger HP outboards became looped for MPG reasons allthough cross scavanged are still were made for durability @ low RPM while trolling..
Makes any sense to you? Because I'm lost .. LOL
Alan
Clark Roberts posted 08-29-2004 06:27 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
First looper was the 3 cyl Evinrude "Triumph" 55hp back in 1968, I believe. I had one of these and it was a great motor as were the higher hp offsprings (up to 75hp)in later years.
bmcgee posted 08-29-2004 07:09 AM ET (US)     Profile for bmcgee  Send Email to bmcgee     
From what I know if your tilt/trim switch is on the right of the cowling it's a 90 if it's on the left 60. looking from the back of the motor.

I FOUND THIS MAY BE TRUE MAYBE NOT.

Freeport Alan posted 08-29-2004 08:30 AM ET (US)     Profile for Freeport Alan    
The '94 40 Merc 4 cyl. I picked up last week is a
Cross flow, motor runs like a top, great for my needs on a 13 Sport..

TampaTom posted 08-29-2004 10:47 AM ET (US)     Profile for TampaTom  Send Email to TampaTom     
A good summary of differences between cross flow and loop charged can be found here: http://www.maxrules.com/fixtheory2.html

I think all the OMC loop charged V4's were 60 degree V's. The cross flows were 90 deg. The SPL was the budget line baed on the older 90 deg cross flow block. Used a lot of gas but a great engine.

One advantage to the 60 deg is the narrow design is nice for twin engine set up. A 60 degree may also run smoother at high rpm. The wider angle of the 90 degree opposing connecting rods might be more "torquey".

Bigshot posted 08-30-2004 01:53 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
They made both in 96.

Loop charged should be an ocean runner but it WILL have a V4 embossed on the back of the block between the cyl heads. It will also have a square cowl that conects to a 2 piece plastic lower cowl with a fresh water flush where the tell-tale is.

cross flow looks the same as they did back in 1968...most have a hump between the cyl heads, some are flat but neither say V4. It has a more egg shaped cowl that connects to a metal lower cowl and no flush attachment. If she sounds like a diesel at idle, she's a cross flow.

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